Add Order Confirmation to PO (#13421)

diff --git a/erpnext/buying/doctype/purchase_order/purchase_order.json b/erpnext/buying/doctype/purchase_order/purchase_order.json
index 09efa27..fc1779a 100644
--- a/erpnext/buying/doctype/purchase_order/purchase_order.json
+++ b/erpnext/buying/doctype/purchase_order/purchase_order.json
@@ -276,6 +276,40 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "description": "", 
+   "fieldname": "company", 
+   "fieldtype": "Link", 
+   "hidden": 0, 
+   "ignore_user_permissions": 0, 
+   "ignore_xss_filter": 0, 
+   "in_filter": 0, 
+   "in_global_search": 0, 
+   "in_list_view": 0, 
+   "in_standard_filter": 1, 
+   "label": "Company", 
+   "length": 0, 
+   "no_copy": 0, 
+   "oldfieldname": "company", 
+   "oldfieldtype": "Link", 
+   "options": "Company", 
+   "permlevel": 0, 
+   "print_hide": 1, 
+   "print_hide_if_no_value": 0, 
+   "read_only": 0, 
+   "remember_last_selected_value": 1, 
+   "report_hide": 0, 
+   "reqd": 1, 
+   "search_index": 0, 
+   "set_only_once": 0, 
+   "translatable": 0, 
+   "unique": 0
+  }, 
+  {
+   "allow_bulk_edit": 0, 
+   "allow_on_submit": 0, 
+   "bold": 0, 
+   "collapsible": 0, 
+   "columns": 0, 
    "fieldname": "column_break1", 
    "fieldtype": "Column Break", 
    "hidden": 0, 
@@ -369,6 +403,70 @@
   }, 
   {
    "allow_bulk_edit": 0, 
+   "allow_on_submit": 1, 
+   "bold": 0, 
+   "collapsible": 0, 
+   "columns": 0, 
+   "depends_on": "eval:doc.docstatus===1", 
+   "fieldname": "order_confirmation_no", 
+   "fieldtype": "Data", 
+   "hidden": 0, 
+   "ignore_user_permissions": 0, 
+   "ignore_xss_filter": 0, 
+   "in_filter": 0, 
+   "in_global_search": 0, 
+   "in_list_view": 0, 
+   "in_standard_filter": 0, 
+   "label": "Order Confirmation No", 
+   "length": 0, 
+   "no_copy": 0, 
+   "permlevel": 0, 
+   "precision": "", 
+   "print_hide": 0, 
+   "print_hide_if_no_value": 0, 
+   "read_only": 0, 
+   "remember_last_selected_value": 0, 
+   "report_hide": 0, 
+   "reqd": 0, 
+   "search_index": 0, 
+   "set_only_once": 0, 
+   "translatable": 0, 
+   "unique": 0
+  }, 
+  {
+   "allow_bulk_edit": 0, 
+   "allow_on_submit": 1, 
+   "bold": 0, 
+   "collapsible": 0, 
+   "columns": 0, 
+   "depends_on": "eval:doc.order_confirmation_no", 
+   "fieldname": "order_confirmation_date", 
+   "fieldtype": "Date", 
+   "hidden": 0, 
+   "ignore_user_permissions": 0, 
+   "ignore_xss_filter": 0, 
+   "in_filter": 0, 
+   "in_global_search": 0, 
+   "in_list_view": 0, 
+   "in_standard_filter": 0, 
+   "label": "Order Confirmation Date", 
+   "length": 0, 
+   "no_copy": 0, 
+   "permlevel": 0, 
+   "precision": "", 
+   "print_hide": 0, 
+   "print_hide_if_no_value": 0, 
+   "read_only": 0, 
+   "remember_last_selected_value": 0, 
+   "report_hide": 0, 
+   "reqd": 0, 
+   "search_index": 0, 
+   "set_only_once": 0, 
+   "translatable": 0, 
+   "unique": 0
+  }, 
+  {
+   "allow_bulk_edit": 0, 
    "allow_on_submit": 0, 
    "bold": 0, 
    "collapsible": 0, 
@@ -405,40 +503,6 @@
    "allow_on_submit": 0, 
    "bold": 0, 
    "collapsible": 0, 
-   "columns": 0, 
-   "description": "", 
-   "fieldname": "company", 
-   "fieldtype": "Link", 
-   "hidden": 0, 
-   "ignore_user_permissions": 0, 
-   "ignore_xss_filter": 0, 
-   "in_filter": 0, 
-   "in_global_search": 0, 
-   "in_list_view": 0, 
-   "in_standard_filter": 1, 
-   "label": "Company", 
-   "length": 0, 
-   "no_copy": 0, 
-   "oldfieldname": "company", 
-   "oldfieldtype": "Link", 
-   "options": "Company", 
-   "permlevel": 0, 
-   "print_hide": 1, 
-   "print_hide_if_no_value": 0, 
-   "read_only": 0, 
-   "remember_last_selected_value": 1, 
-   "report_hide": 0, 
-   "reqd": 1, 
-   "search_index": 0, 
-   "set_only_once": 0, 
-   "translatable": 0, 
-   "unique": 0
-  }, 
-  {
-   "allow_bulk_edit": 0, 
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
    "collapsible_depends_on": "", 
    "columns": 0, 
    "fieldname": "drop_ship", 
@@ -3258,6 +3322,7 @@
    "reqd": 0, 
    "search_index": 0, 
    "set_only_once": 0, 
+   "translatable": 0, 
    "unique": 0
   }, 
   {
@@ -3495,7 +3560,7 @@
  "issingle": 0, 
  "istable": 0, 
  "max_attachments": 0, 
- "modified": "2018-02-21 14:26:17.099336", 
+ "modified": "2018-03-28 14:09:02.393746", 
  "modified_by": "Administrator", 
  "module": "Buying", 
  "name": "Purchase Order",